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https://issues.apache.org/jira/browse/KAFKA-14972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17751330#comment-17751330
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Erik van Oosten commented on KAFKA-14972:
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I am closing this task as won't fix as the committers do not seem to be
convinced it is needed to support async run times.
> Make KafkaConsumer usable in async runtimes
> -------------------------------------------
>
> Key: KAFKA-14972
> URL: https://issues.apache.org/jira/browse/KAFKA-14972
> Project: Kafka
> Issue Type: Wish
> Components: consumer
> Reporter: Erik van Oosten
> Priority: Major
> Labels: needs-kip
>
> KafkaConsumer contains a check that rejects nested invocations from different
> threads (method {{{}acquire{}}}). For users that use an async runtime, this
> is an almost impossible requirement. Examples of async runtimes that are
> affected are Kotlin co-routines (see KAFKA-7143) and Zio.
> It should be possible for a thread to pass on its capability to access the
> consumer to another thread. See
> [KIP-944|https://cwiki.apache.org/confluence/x/chw0Dw] for a proposal and
> [https://github.com/apache/kafka/pull/13914] for an implementation.
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